1 /* $NetBSD: t_basic.c,v 1.5 2017/01/13 21:30:40 christos Exp $ */ 2 3 #include <sys/types.h> 4 #include <sys/param.h> 5 #include <sys/mount.h> 6 7 #include <atf-c.h> 8 #include <err.h> 9 #include <errno.h> 10 #include <fcntl.h> 11 #include <stdio.h> 12 #include <unistd.h> 13 #include <string.h> 14 #include <stdlib.h> 15 16 #include <rump/rump.h> 17 #include <rump/rump_syscalls.h> 18 #include <rump/rumpvfs_if_pub.h> 19 20 #include <fs/tmpfs/tmpfs_args.h> 21 #include <miscfs/umapfs/umap.h> 22 23 #include "h_macros.h" 24 25 ATF_TC(basic); 26 ATF_TC_HEAD(basic, tc) 27 { 28 atf_tc_set_md_var(tc, "descr", "basic umapfs mapping"); 29 } 30 31 static void 32 xtouch(const char *path) 33 { 34 int fd; 35 36 fd = rump_sys_open(path, O_CREAT | O_RDWR, 0777); 37 if (fd == -1) 38 atf_tc_fail_errno("create %s", path); 39 rump_sys_close(fd); 40 } 41 42 static void 43 xchown(const char *path, uid_t uid, gid_t gid) 44 { 45 46 if (rump_sys_chown(path, uid, gid) == -1) 47 atf_tc_fail_errno("chown %s failed", path); 48 } 49 50 static void 51 testuidgid(const char *path, uid_t uid, gid_t gid) 52 { 53 struct stat sb; 54 55 if (rump_sys_stat(path, &sb) == -1) 56 atf_tc_fail_errno("stat %s", path); 57 if (uid != (uid_t)-1) { 58 if (sb.st_uid != uid) 59 atf_tc_fail("%s: expected uid %d, got %d", 60 path, uid, sb.st_uid); 61 } 62 if (gid != (gid_t)-1) { 63 if (sb.st_gid != gid) 64 atf_tc_fail("%s: expected gid %d, got %d", 65 path, gid, sb.st_gid); 66 } 67 } 68 69 ATF_TC_BODY(basic, tc) 70 { 71 struct umap_args umargs; 72 struct tmpfs_args targs; 73 u_long umaps[2][2]; 74 u_long gmaps[2][2]; 75 76 rump_init(); 77 if (rump_sys_mkdir("/td1", 0777) == -1) 78 atf_tc_fail_errno("mp1"); 79 if (rump_sys_mkdir("/td2", 0777) == -1) 80 atf_tc_fail_errno("mp1"); 81 82 /* use tmpfs because rumpfs doesn't support ownership */ 83 memset(&targs, 0, sizeof(targs)); 84 targs.ta_version = TMPFS_ARGS_VERSION; 85 targs.ta_root_mode = 0777; 86 if (rump_sys_mount(MOUNT_TMPFS, "/td1", 0, &targs, sizeof(targs)) == -1) 87 atf_tc_fail_errno("could not mount tmpfs td1"); 88 89 memset(&umargs, 0, sizeof(umargs)); 90 91 /* 92 * Map td1 uid 555 to td2 uid 777 (yes, IMHO the umapfs 93 * mapping format is counter-intuitive). 94 */ 95 umaps[0][0] = 777; 96 umaps[0][1] = 555; 97 umaps[1][0] = 0; 98 umaps[1][1] = 0; 99 gmaps[0][0] = 4321; 100 gmaps[0][1] = 1234; 101 gmaps[1][0] = 0; 102 gmaps[1][1] = 0; 103 104 umargs.umap_target = __UNCONST("/td1"); 105 umargs.nentries = 2; 106 umargs.gnentries = 2; 107 umargs.mapdata = umaps; 108 umargs.gmapdata = gmaps; 109 110 if (rump_sys_mount(MOUNT_UMAP, "/td2", 0, &umargs,sizeof(umargs)) == -1) 111 atf_tc_fail_errno("could not mount umapfs"); 112 113 xtouch("/td1/noch"); 114 testuidgid("/td1/noch", 0, 0); 115 testuidgid("/td2/noch", 0, 0); 116 117 xtouch("/td1/nomap"); 118 xchown("/td1/nomap", 1, 2); 119 testuidgid("/td1/nomap", 1, 2); 120 testuidgid("/td2/nomap", -1, -1); 121 122 xtouch("/td1/forwmap"); 123 xchown("/td1/forwmap", 555, 1234); 124 testuidgid("/td1/forwmap", 555, 1234); 125 testuidgid("/td2/forwmap", 777, 4321); 126 127 /* 128 * this *CANNOT* be correct??? 129 */ 130 xtouch("/td1/revmap"); 131 /* 132 * should be 777 / 4321 (?), but makes first test fail since 133 * it gets 777 / 4321, i.e. unmapped results. 134 */ 135 xchown("/td2/revmap", 555, 1234); 136 testuidgid("/td1/revmap", 555, 1234); 137 testuidgid("/td2/revmap", 777, 4321); 138 139 } 140 141 ATF_TP_ADD_TCS(tp) 142 { 143 ATF_TP_ADD_TC(tp, basic); 144 return 0; /*XXX?*/ 145 } 146